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Pipe Earthing

If an underground cable system uses a galvanized iron pipe driven into moist soil for safety, which type of earthing is being applied?
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Answer & Explanation
Correct AnswerC. Pipe earthing

Quick Explanation

Pipe earthing uses a perforated or suitable GI pipe electrode driven vertically into moist soil to obtain a low-resistance connection to earth. The description therefore directly identifies pipe earthing.

Pipe Earthing explanatory diagram

Detailed Explanation

Correct Answer

C — Pipe earthing

Explanation

Pipe earthing uses a perforated or suitable GI pipe electrode driven vertically into moist soil to obtain a low-resistance connection to earth. The description therefore directly identifies pipe earthing.

Key Concept

Pipe Earthing

Exam Point

GI pipe driven into soil = pipe earthing.

Quick Trick

GI pipe driven into soil = pipe earthing.

Exam Tip

GI pipe driven into soil = pipe earthing.

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